Home / 13,146.63-19,719.96-3,912.63

Finding the Fourth Proportional to 13,146.63, 19,719.96 and 3,912.63

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Solution

The fourth proportional to 13,146.63, 19,719.96 and 3,912.63 is: 5,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.63 : 19,719.96 = 3,912.63 : x
  2. Step 2: Convert to fraction form
    13,146.63/19,719.96 = 3,912.63/x
  3. Step 3: Cross multiply
    13,146.63x = 19,719.96 × 3,912.63
  4. Step 4: Simplify right side
    13,146.63x = 77,156,907.09
  5. Step 5: Solve for x
    x = 77,156,907.09/13,146.63
  6. Step 6: Final answer
    x = 5,868.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.